Detailed description of the invention
Fig. 1 shows an embodiment of the flexible container 103 between pressure sensor module 101 and stripper plate 105.In each embodiment, Surgicul console 100 (such as, eye surgery control station) may be used for carrying out pressure flush (such as at surgery to body part (such as eyes), as the U.S. Patent number 7 that Daniel J.Wilson submitted on May 20th, 2009,806,865 (serial number is 12/469,354) described in, this patent is all incorporated to herein with way of reference, just as set forth in this article completely and intactly).In some embodiments, compression system can comprise stripper plate 105 and pressure sensor module 101.Stripper plate 105 can be configured to move relative to pressure sensor module 101, thus the flexible container 103 pressure being applied between stripper plate 105 and pressure sensor module 101 (such as, flushing liquor is as BSS
tM(balanced salt solution) bag) on.In some embodiments, stripper plate 105 can comprise rigid material (such as, rigidity plastics, metal etc.) and maybe can comprise flexible material (such as U.S. Patent number 7,806, the flexible belt described in 865).Stripper plate 105 can provide and the contacting at least partially with the surface of compression of flexible container 103 of flexible container 103.In some embodiments, the contact area between flexible container 103 and stripper plate 105 can be measured and store in the console.
In some embodiments, stripper plate 105 can be moved by actuator 113 (such as motor (such as stepping motor), pneumatic linear actuator, electric magnet etc.).In some embodiments, the stepping motor controlled by fluid management system 1005 (such as, see Figure 10) or electric magnet can be used with controllable rate push/pull stripper plate 105.In some embodiments, fluid management system can use the mensuration pressure of flexible container 103 (such as, as by pressure sensor module 101 measure) to control the movement of stripper plate 105.Such as, can slow down, stop or reversing the rate travel of stripper plate, to reduce the pressure in flexible container 103, or, the rate travel of stripper plate can be improved to increase the pressure in flexible container 103.When pressure sensor module 101 recorded flexible container 103 there is required pressure time, the rate travel of stripper plate can also be maintained.
Fig. 2 a to 2b shows each embodiment (specific embodiments of module is shown as 101a, 101b etc., and module is commonly referred to as " 101 ") of pressure sensor module 101.Pressure sensor module 101a can comprise one or more force transducer 107 (such as, force transducer 107a, 107b etc.), with when pressure is applied to flexible container 103 from stripper plate 105, measure the power acted on by flexible container 103 on pressure sensor module 101a.In each embodiment, therefore force transducer can the outside in Patient Fluid path (and not invading fluid system).Force transducer can comprise load unit (such as, deformeter load unit or hydraulic pressure or pneumatic type load unit), piezoeletric quartz sensor etc.As in fig. 2 a see, in some embodiments, pressure sensor module 101a can comprise bag contact plate 109, and force transducer 107a can measure the power acted on by the flexible container 103 between bag contact plate 109 and stripper plate 105 on bag contact plate 109.By utilizing the contact area between flexible container 103 and bag contact plate 109 and the power measured by force transducer 107a, the pressure (such as, according to pressure=power/area) relevant to flexible container 103 can be measured.The pressure relevant to flexible container can be the pressure of the internal pressure being equal to flexible container, the pressure proportional with the internal pressure of flexible container, or the pressure that is associated with the internal pressure of flexible container can be comprised (such as, the pressure sensor module pressure that can record for known flexible container pressure record (such as, in control model exercise), and between the actual operating period, described association can be used for obtaining based on the pressure measuring value from pressure sensor module the approximation of actual flexible container pressure).As in figure 2b see, in some embodiments, pressure sensor module 101b can not comprise bag contact plate 109.In some embodiments, pressure sensor module 101b can comprise one or more force transducer 107a, 107b at force sensor array 111, to measure the power at each some place of flexible container 103.
Fig. 3 is the sectional view of an embodiment of the pressure-measuring system (being shown in a part for Surgicul console 100) with hinged bag contact plate 109.In some embodiments, pressure sensor module 101 can comprise hinge 301 on one end of bag contact plate 109, and force transducer 107a (such as, load unit) can be configured to when the flexible container 103 between stripper plate 105 and bag contact plate 109 forces on bag contact plate 109, along with bag contact plate 109 is relative to hinge 301 pivotable, measure the power acted on by bag contact plate 109 on force transducer 107a.In some embodiments, hinge can comprise hold-down bars (such as, being fixed relative to Surgicul console 100), and it is through the center of the hollow cylinder part of bag contact plate 109, thus allows bag contact plate 109 to rotate relative to hold-down bars.Also expection has other hinge arrangement.In some embodiments, the power acted on force transducer 107a can owing to the contact area between flexible container 103 and bag contact plate 109, flexible container 103 crosses over more large area than bag contact plate 109 area be directly pressed on force transducer 107a, and (the more large contact surface between flexible container and bag contact plate amasss and can be taken into account (such as when measuring the pressure of flexible container based on the power recorded from force transducer 107a, the power of the pressure of flexible container=record from force transducer 107a is multiplied by 2 (because the power of half have passed through hinge) contact area between/flexible container and bag contact plate 109)).Other computational methods can also be used (such as, pressure formula can change, so that force transducer 107a is taken into account relative to the position of hinge, the distance etc. between contact area (between flexible container and bag contact plate) and bag contact plate center).In some embodiments, such as, utilize the complex configurations of bag contact plate, flexible container and force transducer, flexible container pressure can be set up to the model (such as, utilizing some known flexible container pressure and its detection of making a concerted effort to form the equation (or chart) associating the power of recording and flexible container pressure) recording power.
Fig. 4 a to 4b shows an embodiment of the pressure-measuring system (being shown in a part for Surgicul console 100) with bag contact plate 109, bag contact plate 109 has force sensor array 111a (such as, comprising multiple force transducer 107a-107d).In some embodiments, installing plate 121 can be used for bag contact plate 109 to be arranged on Surgicul console 100.In some embodiments, pressure sensor module 101 can comprise more than one force transducer 107, and when the side of bag contact plate 109 contacts with flexible container 103, force transducer 107 is positioned on the offside of bag contact plate 109.Output from the force transducer 107a-107d on sensor array 111a can such as be added up, average or compare, to measure the relative to force on pressure sensor module 101.In some embodiments, the power that records on each sensor 107 can be accumulated in together, and summation can divided by the area of bag contact plate 109, to measure the pressure of flexible container.As mentioned above, in some embodiments, association records power and can be established model (record based on known pressure and its and make a concerted effort) with the equation (or chart) of corresponding flexible container internal pressure.
Fig. 5 a to 5b shows an embodiment of pressure-measuring system (being shown in a part for Surgicul console 100), and described pressure-measuring system has force sensor array 111b (such as, comprising capacitance sensor array).In some embodiments, force transducer 107 can comprise one or more capacitance sensor at array 111b, and array 111b is configured to contact flexible container 103.Also expection has other sensor type (such as, conducting polymer).In some embodiments, capacitance sensor array 111b can be placed to and contact with flexible container 103 (several regions of flexible container 103 are contacted with each sensor 107 of capacitance sensor array 111b).In some embodiments, installing plate 123 can be used for array 111b to be arranged on Surgicul console 100.Output from the capacitance sensor on capacitance sensor array 111b can such as be added up, average or compare, to measure the relative to force on pressure sensor module 101.In some embodiments, the power that records on capacitance sensor can be accumulated in together, and summation can divided by the area of bag contact plate 109, to measure the pressure of flexible container.As mentioned above, in some embodiments, association records power and can be established model (record based on known pressure and its and make a concerted effort) with the equation (or chart) of corresponding flexible container internal pressure.Also expection has other force transducer 107 and force transducer configuration.
In some embodiments, as in Fig. 6 a to 6b see, pressure sensor module 101c can comprise the force transducer 107 with contact pilotage 601, and this contact pilotage has and is configured to contact the face of flexible container 103.Contact pilotage 601 can be biased mechanical loose impediment (such as, lever, button, reed etc.), and it is mobile with the effect puted forth effort.Mobile degree can be proportional with active force.Contact pilotage 601 can be expose (such as; the reed directly contacted with flexible container 103 or lever); or can be covered by flexure cover (such as thin film); flexure cover protection contact pilotage 601; but transmit external force (such as, from flexible container 103 to contact pilotage).In some embodiments, contact pilotage can comprise the flexure cover of the flexible circular plane with about 0.5 inch diameter.Also expection has other diameter and shape (such as, the diameter range of about 0.1 to 1 inch, the diameter range etc. of about 1 inch to 5 inches).In some embodiments, bag pressure can be output into ratio (power exports and can depend on the contact pilotage area area of the flexure cover of stylus contact (or with) at least partly) with the power on contact pilotage or covering.As mentioned above, in some embodiments, can measure pressure by Modling model, Modling model realizes by measuring the power measured by force transducer 107 and it being compared with actual bag pressure (it can be known in modeling situation).Can develop formula or chart, it is in actual use for utilizing the actual power of recording on contact pilotage or covering to measure bag pressure.
As in Fig. 7 a to 7b see, pressure sensor module 101 can comprise thin film 125 and load unit 127.Pressure sensor module 101 can comprise fluid (as liquid (such as, water or oil), gel, air etc.), thin film 125 and internal load unit separate by it, make to act on power on thin film 125 by fluid distrbution on internal load unit.In some embodiments, load unit can comprise deformeter or can be hydraulic pressure or air-driven type (also expection has other load unit type).
As in fig. 8 see, the sack 129 being full of fluid can be placed between thin film 125 and flexible container, to make pressure distribution from flexible container on thin film 125.Such as, if flexible container 103 has uneven pressure spot (gauffer on such as surface), then sack 129 can make the power from unevenness point to be distributed on load unit (instead of, such as, in flexible container the part or all of pressure of gauffer on a sensor and provide local misalignment reading).Sack can be full of liquid (such as, water or oil), gel, air etc.Sack can be couple on thin film 125 and (such as, pass through binding agent), or can loosely against thin film 125.
Fig. 9 shows the measuring method of the pressure relevant to flexible container 103.The element provided in flow chart is just in order to illustrate.Thered is provided various elements can be provided, other element can be increased, and/or can according to being different from order provided below to perform various element.
At 901 places, flexible container 103 can be placed between stripper plate 105 and pressure sensor module 101.Such as, BSS
tMsolution bag can hang (such as, by cervical region as seen in Figure 3) between stripper plate 105 and pressure sensor module 101.In some embodiments, flexible container can lie in a horizontal plane between stripper plate 105 and pressure sensor module 101.Also expection has other orientation and couples configuration.
At 903 places, at least one in stripper plate 105 and pressure sensor module 101 can move relative to another in stripper plate 105 and pressure sensor module 101, to apply pressure to flexible container 103.Such as, displacement motor can promote rigidity stripper plate 105, to reduce the space between stripper plate 105 and pressure sensor module 101.As another example, stripper plate 105 can be flexible belt, and it can be pulled (such as, see U.S. Patent number 7,806,865) to extrude the flexible container 103 between stripper plate 105 and pressure sensor module 101.
At 905 places, can by the pressure of the force sensor measuring flexible container 103 on pressure sensor module 101.Power/pressure transducer can measure the power from flexible container 103 surface, thus measures the internal pressure of flexible container 103.
As seen in Fig. 10, in some embodiments, pressure-measuring system 1000 can comprise or be couple to one or more processor (such as, processor 1001).Processor 1001 can comprise single blood processor or multiple blood processor.This blood processor can be microprocessor, controller (it can be microcontroller), digital signal processor, pico computer, CPU, field programmable gate array, programmable logic device, state machine, logic circuit, control circuit, analog circuit, digital circuit and/or any device based on operational order manipulation signal (simulation and/or numeral).Be couple to processor 1001 and/or the memorizer 1003 be embedded among processor 1001 can be single storage device or multiple storage device.This storage device can be any device of read only memory, random access memory, volatile memory, nonvolatile memory, static memory, dynamic memory, flash memory, cache memory and/or storing digital information.It should be noted that, when processor 1001 performs one or more function by state machine, analog circuit, digital circuit and/or logic circuit, the memorizer 1003 storing corresponding operating instruction can be embedded in circuit, analog circuit, digital circuit and/or the logic circuit comprising state machine or in the outside of these circuit.Memorizer 1003 can store the operational order of at least some corresponded in the shown and element that describes by reference to the accompanying drawings, and processor 1001 can perform these instructions.
Figure 11 shows the fluid management system 1005 of combined pressure sensor assembly 101.In some embodiments, fluid management system 1005 can comprise pressure flush system, and it comprises and applies pressure to flexible container 103 (as BSS
tMdouche bag) on stripper plate 105 and pressure sensor module 101 for measuring the external pressure on flexible container 103 outside.Flushing liquor in flexible container 103 can flow through uses circuit 1107, irrigation pressure sensor 1103, flushing valve 1105 (such as, 3 position flushing valves), irrigation lines 1107, handpiece 1115, by sleeve 1109, and enters eyes 1111.In some embodiments, fluid management system 1005 can use the pressure from pressure sensor module 101, and described pressure sensor module 101 replaces the different irrigation pressure sensor in irrigation lines 1107 or additionally uses.Such as, pressure sensor module 101 can provide pressure transducer that is for subsequent use or defence fault, if pressure sensor module 101 measure flexible container 103 on pressure be greater than predetermined maximum pressure, its can be used for stop or restriction stripper plate 105 speed.In some embodiments, system flushing pressure (such as, the pressure of flushing liquor in irrigation lines and/or enter the pressure of patient's eye from the flush path handpiece) can utilize and record pressure to measure from pressure sensor module 101.Record pressure and can be used for the Step-motor Control system of control activity, obtain with mobile stripper plate and maintain required bag pressure (it can correspond to system flushing pressure).The pressure of also expecting from pressure sensor module 101 have other purposes (such as, be used for determining sack when be empty or close to empty, be used for determining whether sack exists, being used for confirming irrigation pressure sensor reading etc.).
In some embodiments, pressure sensor module 101 may be used for the flow velocity measuring rinse solution.Such as, pressure from pressure sensor module 101 can be interrelated and store in systems in which (such as with various flow velocity, in memorizer 1003), to make when recording pressure during operation, corresponding flow velocity can be read by fluid management system 1005 and use.Fluid by being sucked via most advanced and sophisticated 1113, can enter handpiece 1115, enters casket box 1123 via aspiration line 1117 and turns back in fluid management system 1005.Pumping fluid can flow through suction pressure sensor 1119, enters peristaltic pump 1121 (for suction provides suction), enters discharge bin 1127 and enter drainage bag 1125.If Variable Bleed Valves 1133 opens (such as, during aerofluxus or cleaning), then fluid can flow through this Variable Bleed Valves.In some embodiments, flushing liquor can flow through 1131 (such as, during cleaning operation) along separate routes from flushing valve 1105.
One of ordinary skill in the art can carry out various change to provided embodiment.Those skilled in the art are by considering that this description and the present invention disclosed herein practice will understand other embodiment of the present invention.This description and example only should be regarded as exemplary, and true scope of the present invention and spirit are indicated by appended claims and its equivalent.